Mitsubishi Galant. Manual — part 417
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-135
STEP 17. Check the switch output voltage at PCM
connector C-42 by backprobing.
(1) Do not disconnect connector C-42.
(2) Turn the ignition switch to "ON" position.
(3) Move the selector lever to "N" position.
(4) Measure the voltage between terminal 121 and ground by
backprobing.
•
Voltage should be battery positive voltage.
(5) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 10.
NO : Go to Step 18.
STEP 18. Check connector C-42 at PCM for damage.
Q: Is the connector in good condition?
YES : Repair it because of the harness open circuit or short
circuit to ground between the Park/Neutral position
switch connector B-39 terminal 4 and PCM connector
C-42 terminal 121.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
AC004197
PCM
AF
CONNECTOR: C-42
AC001905
C-42 CONNECTOR
HARNESS SIDE VIEW
AE
AC004197
PCM
AF
CONNECTOR: C-42
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-136
STEP 19. Check the Park/Neutral position switch.
Check for continuity between terminals for each selector
position.
Q: Is the switch operating properly?
YES : Go to Step 20.
NO : Replace the Park/Neutral position switch. Refer to
GROUP 23B, Transaxle
.
STEP 20. Check connector B-39 at the Park/Neutral
position switch for damage.
Q: Is the connector in good condition?
YES : Go to Step 21.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
ITEMS
TERMINAL CONNECTION
OF TESTER
SPECIFIED
CONDITION
P
3
−
8, 9
−
10
Less than 2 ohm.
R
7
−
8
N
4
−
8, 9
−
10
D
1
−
8
3
5
−
8
2
2
−
8
L
6
−
8
AC004672
DIPSTICK
PARK/NEUTRAL
POSITION (PNP)
SWITCH
AC
AC001846
P
R
N
D
3
2
L
AB
AC001844AI
CONNECTOR: B-39
DIPSTICK
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-137
STEP 21. Check the switch output voltage at PCM
connector C-42 by backprobing.
(1) Do not disconnect connector C-42.
(2) Turn the ignition switch to "ON" position.
(3) Move the selector lever to "D" position.
(4) Measure the voltage between terminal 102 and ground by
backprobing.
•
Voltage should be battery positive voltage.
(5) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 10.
NO : Go to Step 22.
STEP 22. Check connector C-42 at PCM for damage.
Q: Is the connector in good condition?
YES : Repair it because of the harness open circuit or short
circuit to ground between the Park/Neutral position
switch connector B-39 terminal 1 and PCM connector
C-42 terminal 102.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
AC004197
PCM
AF
CONNECTOR: C-42
AC001906
C-42 CONNECTOR
HARNESS SIDE VIEW
AE
AC004197
PCM
AF
CONNECTOR: C-42
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-138
STEP 23. Check the Park/Neutral position switch.
Check for continuity between terminals for each selector
position.
Q: Is the switch operating properly?
YES : Go to Step 24.
NO : Replace the Park/Neutral position switch. Refer to
GROUP 23B, Transaxle
.
STEP 24. Check connector B-39 at the Park/Neutral
position switch for damage.
Q: Is the connector in good condition?
YES : Go to Step 25.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
ITEMS
TERMINAL CONNECTION
OF TESTER
SPECIFIED
CONDITION
P
3
−
8, 9
−
10
Less than 2 ohm.
R
7
−
8
N
4
−
8, 9
−
10
D
1
−
8
3
5
−
8
2
2
−
8
L
6
−
8
AC004672
DIPSTICK
PARK/NEUTRAL
POSITION (PNP)
SWITCH
AC
AC001846
P
R
N
D
3
2
L
AB
AC001844AI
CONNECTOR: B-39
DIPSTICK
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